© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 1 of 17
Data Sheet
Cisco 250 Series Smart Switches
Build a reliable, easy-to-use business network at an affordable price
In today's hyper-connected world, reliable access to network resources is critical to all businesses. However, you
also need to invest wisely to stay competitive, knowing how to separate the essential from the extraneous and get
the most value for your dollar. For investment in network infrastructure, building a solid foundation for your
business is essential, but it doesn’t mean you need the most advanced feature set on the market.
For businesses requiring high performance, advanced security, and rich manageability from the network, fully
managed switches are an excellent choice. However, they also typically come with high price tags. Smart switches
provide the right level of network features and capabilities for growing businesses at a lower price, so you’ll have
more dollars to put toward other areas of your business.
With Cisco® 250 Series Smart Switches (Figure 1), you can achieve business-class network performance and
security without paying for advanced network features that you will not use. When you need a reliable solution to
share online resources and connect computers, phones, and wireless access points, but low cost is a top priority,
Cisco 250 Series Smart Switches provide the ideal solution.
Figure 1. Cisco 250 Series Smart Switches
The Cisco 250 Series is the next generation of affordable smart switches that combine powerful network
performance and reliability with a complete suite of the network features you need for a solid business network.
These powerful Fast Ethernet or Gigabit Ethernet switches, with Gigabit or 10 Gigabit Ethernet uplinks, provide
multiple management options, sophisticated security capabilities, fine-tuned Quality-of-Service (QoS) and Layer 3
static routing features far beyond those of an unmanaged or consumer-grade switch, at a lower cost than for fully
managed switches. And with an easy-to-use web user interface, Smart Network Application, and Power over
Ethernet Plus (PoE+) capability, you can deploy and configure a complete business network in minutes.
Business applications
Whether you need basic, high-speed connectivity for your computers and servers or a comprehensive voice, data,
and wireless technology solution, Cisco 250 Series switches can meet your business needs. Possible deployment
scenarios include:
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 2 of 17
● High-speed desktop connectivity: Cisco 250 Series switches can quickly and securely connect
employees working in small offices with one another and with all of the printers, servers, and other devices
they use. High performance and reliable connectivity help speed up file transfers and data processing,
improve network uptime, and keep your employees productive.
● Flexible wireless connectivity: Cisco 250 Series switches work with Cisco and third-party wireless
solutions to extend the reach of your network. With security features, Power over Ethernet (PoE), VLAN,
and QoS, these switches are the perfect foundation to add business-grade wireless to a network.
The capability of up to 30W of power per port provided through the Ethernet cable means you can easily
deploy innovative 802.11ac wireless technology to maximize workforce productivity.
● Unified communications: The Cisco 250 Series provides QoS features to enable you to prioritize delay-
sensitive traffic in your network and let you converge all of your communications solutions such as IP
telephony and video surveillance onto a single Ethernet network. Cisco offers a complete portfolio of IP
telephony and other unified communications products designed for small businesses, and Cisco 250 Series
switches have been rigorously tested to help ensure easy integration and full compatibility with these and
other vendor products.
Features and benefits
Cisco 250 Series Smart Switches provide all of the features you need to create a basic business-class network at
an affordable price. These features include:
● Easy configuration and management: Cisco 250 Series switches are designed to be easy to deploy and
use by small businesses or the partners that serve them:
◦ Smart Network Application (SNA) is an innovative network-level monitoring and management tool
embedded in the Cisco 100 to 500 Series switches. It can discover network topology, display link status,
monitor events, apply configurations, and upgrade software images across multiple switches in the
network.
◦ The FindIT Network Manager and Probe are designed to manage Cisco 100 to 500 Series switches,
routers, and wireless access points. They let you proactively manage the network instead of just reacting
to events. Cisco 250 Series switches support the embedded FindIT Network Probe, eliminating the need
to set up a separate hardware or virtual machine on site. For more information, visit
https://www.cisco.com/c/en/us/products/cloud-systems-management/findit-network-
management/index.html.
◦ The FindIT Network Discovery Utility works through a simple toolbar on the user’s web browser to
discover Cisco devices on the network and display basic device information, inventory, and new firmware
updates to aid in the configuration and speed the deployment of Cisco Small Business products. For
more information, visit https://www.cisco.com/c/en/us/products/cloud-systems-management/small-
business-findit-network-discovery-utility/index.html.
◦ Simple or advanced-mode graphic user interfaces reduce the time required to deploy, troubleshoot, and
manage the network. Configuration wizards simplify the most common configuration tasks and provide
the ultimate tool for anyone to set up and manage the network.
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◦ Cisco Smartports technology provides more advanced capabilities and hands-on control by automatically
configuring ports with specific levels of security, QoS, and availability according to the type of connected
device, based on Cisco best practices and pretested configurations. The Auto Smartports feature
automatically applies the intelligence delivered through the Smartports roles to the port based on the
device types discovered over Cisco Discovery Protocol or LLDP-MED. This capability facilitates zero-
touch deployments.
◦ The USB port on the front panel of the switch enables easy image and configuration transfer for faster
deployment or upgrades.
● Reliability and performance: Cisco 250 Series switches have been tested to deliver the high performance
and reliability you would expect from a Cisco switch and help you prevent costly downtime. The switches
speed file transfer times, improve slow and sluggish networks, keep your vital business applications
available, and help your employees respond more quickly to customers and each other. With a network
based on Cisco 250 Series switches, you can address all of your business communications and connectivity
needs and reduce the total cost of ownership of your technology infrastructure. Cisco 250 Series switches
also support 10 Gigabit Ethernet uplinks on select models, so you can build a high-performance and future-
ready network to support your thriving business.
● Layer 3 static routing: This capability allows you to segment your network into separate workgroups and
communicate across VLANs without degrading application performance. As a result, you can manage
internal routing with your switches and dedicate your router to external traffic and security, helping your
network run more efficiently.
● Power over Ethernet Plus (PoE+): Cisco 250 Series switches are available with PoE+ on both Fast
Ethernet and Gigabit Ethernet models. This capability simplifies the deployment of IP telephony, wireless,
video surveillance, and other solutions by allowing you to send data and power to network endpoints over
the single network cable, eliminating the need for separate power supplies or outlets. PoE+ provides up to
30W of power per port, enabling deployments for 802.11ac wireless access points, Pan-Tilt-Zoom (PTZ) IP
cameras, videophones, and thin client devices, delivering more flexibility and investment protection.
● PoE powered device and PoE pass-through: The 10-port compact models of Cisco 250 Series can work
as PoE powered devices and draw power from upstream PoE switches in the wiring closet, simplifying the
deployment in meeting rooms, classrooms, hotel rooms, and other flexible locations. Each switch can
accept up to 60W of power per uplink port to power itself and pass through the power to the downstream
PoE end devices if needed.
● Network security: Cisco 250 Series switches provide the security and network management features you
need to maintain a high level of security for your business, keep unauthorized users off the network, and
protect your business data. The switches include integrated network security to reduce the risk of a security
breach, with IEEE 802.1X port security to control access to your network, Denial-of-Service (DoS) attack
prevention to increase network uptime during an attack, and extensive Access Control Lists (ACLs) to
protect sensitive portions of the network from unauthorized users and guard against network attacks.
● IPv6 support: As the IP network addressing scheme evolves to accommodate more devices, you can have
peace of mind that your network is ready. Cisco 250 Series switches provide native support for IPv6
alongside traditional IPv4. With USGv6 and IPv6 Gold Logo certifications, the 250 Series will enable you to
take full advantage of IPv6-enabled operating systems and applications in the future, without having to
upgrade your network equipment.
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 4 of 17
● IP telephony support: Cisco 250 Series switches include QoS features to prioritize delay-sensitive
services such as voice and video, simplify unified communications deployments, and help ensure consistent
network performance for all services.
● Networkwide automatic voice deployment: Using a combination of Cisco Discovery Protocol, LLDP-
MED, Auto Smartports, and Voice Services Discovery Protocol (VSDP, a unique, patented Cisco protocol),
customers can deploy an end-to-end voice network dynamically. The switches in the network automatically
converge into a single voice VLAN and set of QoS parameters and then propagate them out to the phones
on the ports where they are discovered. For example, automated voice VLAN capabilities let you plug any
IP phone (including third-party phones) into your IP telephony network and receive an immediate dial tone.
The switch automatically configures the device with the right VLAN and QoS parameters to prioritize voice
traffic.
● An energy-efficient solution: Cisco 250 Series switches are designed to be energy efficient and eco
friendly without compromising performance. They help conserve energy by optimizing power use, which
helps protect the environment and lowers your energy costs. Power-saving features include:
◦ Support for the Energy Efficient Ethernet (IEEE 802.3az) standard, which reduces energy consumption
by monitoring the amount of traffic on an active link and putting the link into a sleep state during quiet
periods
◦ Automatic power shutoff on ports when a link is down
◦ Embedded intelligence to adjust power based on cable length
◦ Fanless design in most models, which reduces power consumption, increases reliability, and provides
quieter operation
◦ Ability to turn off LEDs to conserve power
● Peace of mind and investment protection: Cisco 250 Series switches offer the reliable performance,
investment protection, and peace of mind you expect from a Cisco switch. When you invest in the Cisco 250
Series, you gain the benefits of:
◦ Cisco limited lifetime warranty to protect your investment
◦ Rigorous testing to help ensure easy integration and compatibility with other Cisco networking and
communications products, including the complete Cisco Small Business portfolio
● Limited lifetime warranty: The Cisco 250 Series switches come with the Cisco limited lifetime hardware
warranty, with return-to-factory replacement, software updates for bug fixes for the warranty term, and 1-
year limited warranty for fans and power supplies. In addition, Cisco offers telephone technical support at no
charge for the first 12 months following the date of purchase. To download software updates, go to
https://www.cisco.com/cisco/web/download/index.html.
● World-class support: To extend the support coverage beyond the warranty provisions, choose Cisco
Smart Net Total Care™
, which helps you get the most value from Cisco Small Business solutions, providing
peace of mind at an affordable price. Cisco Smart Net Total Care provides a single service platform for all
Cisco networking products. With global coverage, flexible contract terms, and multiple advance hardware
replacement options, this comprehensive service includes software upgrades, access to the Cisco Small
Business Support Center, and extended telephone and online chat support. To learn more, visit
https://www.cisco.com/c/en/us/solutions/small-business/services.html.
To find out where Cisco Small Business Support Service is available by country, go to
https://supportforums.cisco.com/t5/regional-service-support-options/bd-p/4626-discussions-smb-support-
country.
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 5 of 17
● Multiple language options: The Cisco 250 Series switches are available in multiple languages. Product
documentation and user interfaces are translated, giving you the ability to select your preferred language.
Product specifications
Table 1 describes product specifications.
Table 1. Product specifications
Feature Description
Performance
Switching capacity and forwarding rate
All switches are wire-speed and nonblocking
Model Capacity in millions of packets per second (mpps) (64-byte packets)
Switching capacity in gigabits per second (Gbps)
SF250-24 9.52 12.8
SF250-24P 9.52 12.8
SF250-48 13.10 17.6
SF250-48HP 13.10 17.6
SG250-08 11.90 16.0
SG250-08HP 11.90 16.0
SG250-10P 14.88 20.0
SG250-18 26.78 36.0
SG250-26 38.69 52.0
SG250-26HP 38.69 52.0
SG250-26P 38.69 52.0
SG250-50 74.41 100.0
SG250-50HP 74.41 100.0
SG250-50P 74.41 100.0
SG250X-24 95.23 128.0
SG250X-24P 95.23 128.0
SG250X-48 130.94 176.0
SG250X-48P 130.94 176.0
Layer 2 switching
Spanning Tree Protocol (STP) Standard 802.1d spanning tree support
Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default
Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported
Port grouping/link aggregation Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
● Up to 4 groups
● Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAG
VLAN Support for up to 256 active VLANs simultaneously
Port-based and 802.1Q tag-based VLANs
Management VLAN
Guest VLAN
Voice VLAN Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide zero-touch deployment of voice endpoints and call control devices
Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)
Protocols for automatically propagating and configuring VLANs in a bridged domain
IGMP (versions 1, 2, and 3) snooping
Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 4K multicast groups (source-specific multicasting is also supported)
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 6 of 17
Feature Description
IGMP querier Used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router
HOL blocking Head-Of-Line (HOL) blocking
Loopback detection Provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP
Layer 3 routing
IPv4 routing Wire-speed routing of IPv4 packets
Up to 32 static routes and up to 16 IP interfaces
IPv6 routing Wire-speed routing of IPv6 packets
Layer 3 interface Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface
Classless Interdomain Routing (CIDR)
Support for CIDR
DHCP relay at Layer 3 Relay of DHCP traffic across IP domains
User Datagram Protocol (UDP) relay
Relay of broadcast information across Layer 3 domains for application discovery or relaying of bootP/DHCP packets
Security
SSL Secure Sockets Layer (SSL) encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switch
Secure Shell (SSH) Protocol SSH is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH v1 and v2 are supported
IEEE 802.1X (authenticator role) RADIUS authentication, guest VLAN, single/multiple host mode, and single/multiple sessions
Secure Core Technology (SCT) Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received
Secure Sensitive Data (SSD) A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plaintext or encrypted is provided according to the user-configured access level and the access method of the user
Port security Ability to lock source MAC addresses to ports and limit the number of learned MAC addresses
RADIUS Supports RADIUS authentication for management access. Switch functions as a client
Storm control Broadcast, multicast, and unknown unicast
DoS prevention Denial-of-Service (DoS) attack prevention
Access Control Lists (ACLs) Support for up to 512 rules
Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag
STP loopback guard Provides additional protection against Layer 2 forwarding loops (STP loops)
Quality of service
Priority levels 8 hardware queues
Scheduling Strict priority and Weighted Round-Robin (WRR) queue assignment based on DSCP and class of service (802.1p/CoS)
Class of service Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/Type of Service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS
Rate limiting Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based
Congestion avoidance A TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronization
Standards
Standards IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad Link Aggregation Control Protocol, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.3 ad LACP, IEEE 802.1D (STP), IEEE 802.1Q/p VLAN, IEEE 802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE 802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 920, RFC 922, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1213, RFC 1215, RFC 1286, RFC 1350, RFC 1442, RFC 1451, RFC 1493, RFC 1533, RFC 1541, RFC 1542, RFC 1573, RFC 1624, RFC 1643, RFC 1700, RFC 1757, RFC 1867, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2030, RFC 2131, RFC 2132, RFC 2233, RFC 2576, RFC 2616, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 3416, RFC 4330
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 7 of 17
Feature Description
IPv6
IPv6 IPv6 host mode
IPv6 over Ethernet
Dual IPv6/IPv4 stack
IPv6 neighbor and Router Discovery (ND)
IPv6 stateless address auto configuration
Path Maximum Transmission Unit (MTU) discovery
Duplicate Address Detection (DAD)
Internet Control Message Protocol (ICMP) version 6
IPv6 over IPv4 network with Intrasite Automatic Tunnel Addressing Protocol (ISATAP) support
USGv6 and IPv6 Gold Logo certified
IPv6 QoS Prioritize IPv6 packets in hardware
IPv6 ACL Drop or rate limit IPv6 packets in hardware
Multicast Listener Discovery (MLD v1/2) snooping
Deliver IPv6 multicast packets only to the required receivers
IPv6 applications Web/SSL, Telnet server/SSH, Ping, Traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Remote Authentication Dial-In User Service (RADIUS), Syslog, DNS client, DHCP client, DHCP autoconfig
IPv6 RFCs supported RFC 4443 (which obsoletes RFC 2463): ICMPv6
RFC 4291 (which obsoletes RFC 3513): IPv6 address architecture
RFC 4291: IPv6 Addressing Architecture
RFC 2460: IPv6 Specification
RFC 4861 (which obsoletes RFC 2461): Neighbor Discovery for IPv6
RFC 4862 (which obsoletes RFC 2462): IPv6 Stateless Address Autoconfiguration
RFC 1981: Path MTU Discovery
RFC 4007: IPv6 Scoped Address Architecture
RFC 3484: Default address selection mechanism
RFC 5214 (which obsoletes RFC 4214): ISATAP tunneling
RFC 4293; MIB IPv6: Textual Conventions and General Group
RFC 3595: Textual Conventions for IPv6 Flow Label
Management
Web user interface Built-in switch configuration utility for easy browser-based device configuration (HTTP/HTTPS). Supports configuration, wizards, system dashboard, system maintenance, and monitoring
Basic and advanced mode for maximum operational efficiency
Smart Network Application (SNA)
An innovative network-level monitoring and management tool embedded in Cisco 250 to 550X Series switches. It can discover network topology, display link status, monitor events, apply configurations, and upgrade software images across multiple switches in the network
SNMP SNMP versions 1, 2c, and 3 with support for traps, and SNMP v3 User-based Security Model (USM)
Standard MIBs lldp-MIB
lldpextdot1-MIB
lldpextdot3-MIB
lldpextmed-MIB
rfc2674-MIB
rfc2575-MIB
rfc2573-MIB
rfc2233-MIB
rfc2013-MIB
rfc2012-MIB
rfc2011-MIB
RFC-1212
RFC-1215
SNMPv2-CONF
SNMPv2-TC
p-bridge-MIB
rfc2665-MIB
rfc2668-MIB
rfc2737-MIB
rfc2925-MIB
rfc3621-MIB
rfc4668-MIB
rfc4670-MIB
trunk-MIB
tunnel-MIB
udp-MIB
draft-ietf-bridge-8021x-MIB
draft-ietf-bridge-rstpmib-04-MIB
draft-ietf-hubmib-etherif-mib-v3-00-MIB
draft-ietf-syslog-device-MIB
ianaaddrfamnumbers-MIB
ianaifty-MIB
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 8 of 17
Feature Description
q-bridge-MIB
rfc1389-MIB
rfc1493-MIB
rfc1611-MIB
rfc1612-MIB
rfc1850-MIB
rfc1907-MIB
rfc2571-MIB
rfc2572-MIB
rfc2574-MIB
rfc2576-MIB
rfc2613-MIB
ianaprot-MIB
inet-address-MIB
ip-forward-MIB
ip-MIB
RFC1155-SMI
RFC1213-MIB
SNMPv2-MIB
SNMPv2-SMI
SNMPv2-TM
RMON-MIB
rfc1724-MIB
dcb-raj-DCBX-MIB-1108-MIB
rfc1213-MIB
rfc1757-MIB
Private MIBs CISCOSB-lldp-MIB
CISCOSB-brgmulticast-MIB
CISCOSB-bridgemibobjects-MIB
CISCOSB-bonjour-MIB
CISCOSB-dhcpcl-MIB
CISCOSB-MIB
CISCOSB-wrandomtaildrop-MIB
CISCOSB-traceroute-MIB
CISCOSB-telnet-MIB
CISCOSB-stormctrl-MIB
CISCOSBssh-MIB
CISCOSB-socket-MIB
CISCOSB-sntp-MIB
CISCOSB-smon-MIB
CISCOSB-phy-MIB
CISCOSB-multisessionterminal-MIB
CISCOSB-mri-MIB
CISCOSB-jumboframes-MIB
CISCOSB-gvrp-MIB
CISCOSB-endofmib-MIB
CISCOSB-dot1x-MIB
CISCOSB-deviceparams-MIB
CISCOSB-cli-MIB
CISCOSB-cdb-MIB
CISCOSB-brgmacswitch-MIB
CISCOSB-3sw2swtables-MIB
CISCOSB-smartPorts-MIB
CISCOSB-tbi-MIB
CISCOSB-macbaseprio-MIB
CISCOSB-env_mib-MIB
CISCOSB-policy-MIB
CISCOSB-sensor-MIB
CISCOSB-aaa-MIB
CISCOSB-application-MIB
CISCOSB-bridgesecurity-MIB
CISCOSB-copy-MIB
CISCOSB-CpuCounters-MIB
CISCOSB-Custom1BonjourService-MIB
CISCOSB-dhcp-MIB
CISCOSB-dlf-MIB
CISCOSB-ip-MIB
CISCOSB-iprouter-MIB
CISCOSB-ipv6-MIB
CISCOSB-mnginf-MIB
CISCOSB-lcli-MIB
CISCOSB-localization-MIB
CISCOSB-mcmngr-MIB
CISCOSB-mng-MIB
CISCOSB-physdescription-MIB
CISCOSB-PoE-MIB
CISCOSB-protectedport-MIB
CISCOSB-rmon-MIB
CISCOSB-rs232-MIB
CISCOSB-SecuritySuite-MIB
CISCOSB-snmp-MIB
CISCOSB-specialbpdu-MIB
CISCOSB-banner-MIB
CISCOSB-syslog-MIB
CISCOSB-TcpSession-MIB
CISCOSB-traps-MIB
CISCOSB-trunk-MIB
CISCOSB-tuning-MIB
CISCOSB-tunnel-MIB
CISCOSB-udp-MIB
CISCOSB-vlan-MIB
CISCOSB-ipstdacl-MIB
CISCOSB-eee-MIB
CISCOSB-ssl-MIB
CISCOSB-digitalkeymanage-MIB
CISCOSB-qosclimib-MIB
CISCOSB-digitalkeymanage-MIB
CISCOSB-tbp-MIB
CISCOSMB-MIB
CISCOSB-secsd-MIB
CISCOSB-draft-ietf-entmib-sensor-MIB
CISCOSB-draft-ietf-syslog-device-MIB
CISCOSB-rfc2925-MIB
CISCO-SMI-MIB
CISCOSB-DebugCapabilities-MIB
CISCOSB-CDP-MIB
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 9 of 17
Feature Description
CISCOSB-dnscl-MIB
CISCOSB-embweb-MIB
CISCOSB-fft-MIB
CISCOSB-file-MIB
CISCOSB-greeneth-MIB
CISCOSB-greeneth-MIB
CISCOSB-interfaces-MIB
CISCOSB-interfaces_recovery-MIB
CISCOSB-vlanVoice-MIB
CISCOSB-EVENTS-MIB
CISCOSB-sysmng-MIB
CISCOSB-sct-MIB
CISCO-TC-MIB
CISCO-VTP-MIB
CISCO-CDP-MIB
Remote monitoring (RMON) Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis
IPv4 and IPv6 dual stack Coexistence of both protocol stacks to ease migration
Firmware upgrade Web browser upgrade (HTTP/HTTPS) and TFTP and upgrade over SCP running over SSH
Dual images for resilient firmware upgrades
Port mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 4 source ports can be mirrored to one destination port
VLAN mirroring Traffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 4 source VLANs can be mirrored to one destination port
Dynamic Host Configuration Protocol (DHCP) (options 12, 66, 67, 129, and 150)
DHCP options facilitate tighter control from a central point (DHCP server), to obtain IP address, autoconfiguration (with configuration file download), DHCP Relay, and host name
Secure Copy (SCP) Securely transfers files to and from the switch
Autoconfiguration with SCP file download
Enables mass deployment with protection of sensitive data
Text-editable configs Config files can be edited with a text editor and downloaded to another switch, facilitating easier mass deployment
Smartports Simplified configuration of QoS and security capabilities
Auto Smartports Automatically applies the intelligence delivered through the Smartports roles to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This facilitates zero-touch deployments
Textview Command-Line Interface (CLI)
Scriptable CLI. A full CLI as well as a menu-based CLI is supported. User privilege levels 1, 7, and 15 are supported for the CLI
Cloud services Support for Cisco FindIT Network Manager and Cisco Active Advisor
Embedded FindIT Network Probe
Support for embedded FindIT Network Probe running on the switch. Eliminates the need to set up a separate hardware or virtual machine for the FindIT Network Probe on site
Cisco Network Plug and Play (PnP) agent
The Cisco Network Plug and Play solution provides a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or for provisioning updates to an existing network. The solution provides a unified approach to provision Cisco routers, switches, and wireless devices with a near-zero-touch deployment experience
Localization Localization of GUI and documentation into multiple languages
Login banner Configurable multiple banners for web as well as CLI
Other management Traceroute; single IP management; HTTP/HTTPS; RADIUS; port mirroring; TFTP upgrade; DHCP client; Simple Network Time Protocol (SNTP); cable diagnostics; Ping; syslog; Telnet client (SSH secure support); automatic time settings from Management Station
Green (power efficiency)
Energy detect Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link is up
Cable length detection Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables
EEE compliant (802.3az) Supports IEEE 802.3az on all copper Gigabit Ethernet ports
Disable port LEDs LEDs can be manually turned off to save on energy
Time-based port operation Link up or down based on user-defined schedule (when the port is administratively up)
Time-based PoE PoE power can be on or off based on user-defined schedule to save energy
General
Jumbo frames Frame sizes up to 9K bytes. The default MTU is 2K bytes
MAC table 8K addresses
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 10 of 17
Feature Description
Discovery
Bonjour The switch advertises itself using the Bonjour protocol
Link Layer Discovery Protocol (LLDP) (802.1ab) with LLDP-MED extensions
Link Layer Discovery Protocol (LLDP) allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones
Cisco Discovery Protocol The switch advertises itself using the Cisco Discovery Protocol. It also learns the connected device and its characteristics using Cisco Discovery Protocol
Product specifications
802.3at PoE+ and 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets
The following switches support 802.3at PoE+, 802.3af, and Cisco prestandard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:
Model Power dedicated to PoE Number of ports that support PoE
SF250-24P 185W 24
SF250-48HP 195W 48
SG250-08HP 45W 8
SG250-10P 62W 8
SG250-26HP 100W 24
SG250-26P 195W 24
SG250-50HP 192W 48
SG250-50P 375W 48
SG250X-24P 195W 24
SG250X-48P 382W 48
PoE Powered Device (PD) and PoE pass-through
Besides AC power, select compact switch models can work as PoE Powered Device (PD) and be powered by PoE switches connected to the uplink ports. The switch can also pass through the power to downstream PoE end devices if required
Maximum of 60W can be drawn per uplink port if the peer PoE switch supports 60W PoE. When multiple uplink ports are connected to PoE switches, the power drawn from these ports is combined
When AC power is connected and functioning correctly, it is preferred over PoE power. The PoE power can function as a backup to the AC power source or be used as the sole power source for the switch
Model Power option Available PoE pass-through power (W)
Can switch be powered with uplinks?
SG250-08 1 x PoE uplink
1 x PoE+ uplink
AC Power
N/A
N/A
N/A
Yes
Yes
Yes
SG250-10P 1 x PoE uplink
2 x PoE uplink
1 x PoE+ uplink
2 x PoE+ uplink
1 x 60W PoE uplink
2 x 60W PoE uplink
AC Power
0W
0W
0W
22W
22W
50W
62W
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Power consumption (worst case)
Model Green power (mode) System power consumption
Power consumption (with PoE)
Heat dissipation (BTU/hr)
SF250-24 EEE, Energy Detect 110V=10.6W
220V=10.9W
– 37.19
SF250-24P EEE, Energy Detect 110V=29.2W
220V=28.3W
110V=238W
220V=230W
812.09
SF250-48 EEE, Energy Detect 110V=23.4W
220V=24.2W
– 82.57
SF250-48HP EEE, Energy Detect 110V=43.1W
220V=44.3W
110V=265.2W
220V=255.8W
904.90
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 11 of 17
Feature Description
SG250-08 EEE, Energy Detect, Short Reach
110V=7.6W
220V=7.6W
– 25.93
SG250-08HP EEE, Energy Detect, Short Reach
110V=9.1W
220V=10.1W
110V=61.4W
220V=59.8W
209.51
SG250-10P EEE, Energy Detect, Short Reach
110V=13.25W
220V=13.42W
110V=85.19W
220V=84.17W
290.68
SG250-18 EEE, Energy Detect, Short Reach
110V=13.1W
220V=13.0W
– 44.70
SG250-26 EEE, Energy Detect, Short Reach
110V=18.1W
220V=18.9W
– 64.49
SG250-26HP EEE, Energy Detect, Short Reach
110V=23.5W
220V=24.4W
110V=135.2W
220V=133.9W
461.32
SG250-26P EEE, Energy Detect, Short Reach
110V=34.2W
220V=37.2W
110V=262W
220V=254.5W
893.98
SG250-50 EEE, Energy Detect, Short Reach
110V=35.2W
220V=35.4W
– 120.79
SG250-50HP EEE, Energy Detect, Short Reach
110V=57.5W
220V=59.3W
110V=267.2W
220V=263.5W
911.72
SG250-50P EEE, Energy Detect, Short Reach
110V=58.5W
220V=60.3W
110V=481.9W
220V=468.1W
1,644.31
SG250X-24 EEE, Energy Detect, Short Reach
110V=28.7W
220V=29.1W
– 99.29
SG250X-24P EEE, Energy Detect, Short Reach
110V=46.8W
220V=49.2W
110V=260.1W
220V=257.1W
887.50
SG250X-4 8 EEE, Energy Detect, Short Reach
110V=46.0W
220V=45.6W
– 156.96
SG250X-48P EEE, Energy Detect, Short Reach
110V=68.4W
220V=70.3W
110V=502.3W
220V=487.1W
1,713.92
Ports Model name Total system ports RJ-45 ports Combo ports (RJ-45 + SFP)
SF250-24 24 Fast Ethernet + 4 Gigabit Ethernet
24 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP
SF250-24P 24 Fast Ethernet + 4 Gigabit Ethernet
24 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP
SF250-48 48 Fast Ethernet + 4 Gigabit Ethernet
48 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP
SF250-48HP 48 Fast Ethernet + 4 Gigabit Ethernet
48 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP
SG250-08 8 Gigabit Ethernet 8 Gigabit Ethernet –
SG250-08HP 8 Gigabit Ethernet 8 Gigabit Ethernet –
SG250-10P 10 Gigabit Ethernet 8 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-18 18 Gigabit Ethernet 16 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-26 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-26HP 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-26P 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-50 50 Gigabit Ethernet 48 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-50HP 50 Gigabit Ethernet 48 Gigabit Ethernet 2 Gigabit Ethernet combo
SG250-50P 50 Gigabit Ethernet 48 Gigabit Ethernet 2 Gigabit Ethernet combo
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 12 of 17
Feature Description
SG250X-24 24 Gigabit Ethernet + 4 10 Gigabit Ethernet
24 Gigabit Ethernet 2 10 Gigabit Ethernet copper + 2 SFP+
SG250X-24P 24 Gigabit Ethernet + 4 10 Gigabit Ethernet
24 Gigabit Ethernet 2 10 Gigabit Ethernet copper + 2 SFP+
SG250X-48 48 Gigabit Ethernet + 4 10 Gigabit Ethernet
48 Gigabit Ethernet 2 10 Gigabit Ethernet copper + 2 SFP+
SG250X-48P 48 Gigabit Ethernet + 4 10 Gigabit Ethernet
48 Gigabit Ethernet 2 10 Gigabit Ethernet copper + 2 SFP+
USB slot USB Type-A slot on the front panel of the switch for easy file and image management
Buttons Reset button
Cabling type Unshielded Twisted Pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5e or better for 1000BASE-T
LEDs System, Link/Act, PoE, Speed
Flash 256 MB
CPU 800 MHz ARM
CPU memory 512 MB
Packet buffer All numbers are aggregate across all ports because the buffers are dynamically shared:
Model name Packet buffer
SF250-24 12 Mb
SF250-24P 12 Mb
SF250-48 24 Mb
SF250-48HP 24 Mb
SG250-08 12 Mb
SG250-08HP 12 Mb
SG250-10P 12 Mb
SG250-18 12 Mb
SG250-26 12 Mb
SG250-26HP 12 Mb
SG250-26P 12 Mb
SG250-50 24 Mb
SG250-50HP 24 Mb
SG250-50P 24 Mb
SG250X-24 12 Mb
SG250X-24P 12 Mb
SG250X-48 24 Mb
SG250X-48P 24 Mb
Supported SFP/SFP+ modules SKU Media Speed Maximum distance
MGBBX1 Single-mode fiber 1000 Mbps 10 km
MGBSX1 Multimode fiber 1000 Mbps 500 m
MGBLH1 Single-mode fiber 1000 Mbps 40 km
MGBLX1 Single-mode fiber 1000 Mbps 10 km
MGBT1 UTP cat 5e 1000 Mbps 100 m
GLC-LH-SMD= Single-mode fiber 1000 Mbps 10 km
GLC-BX-U= Single-mode fiber 1000 Mbps 10 km
SFP-H10GB-CU1M Copper coax 10 Gig 1 m
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 13 of 17
Feature Description
SFP-H10GB-CU3M Copper coax 10 Gig 3 m
SFP-H10GB-CU5M Copper coax 10 Gig 5 m
SFP-10G-SR Multimode fiber 10 Gig 26 m - 400 m
SFP-10G-LR Single-mode fiber 10 Gig 10 km
SFP-10G-SR-S Multimode fiber 10 Gig 26 m - 400 m
SFP-10G-LR-S Single-mode fiber 10 Gig 10 km
Environmental
Unit dimensions (W x H x D) Model name Unit dimensions
SF250-24 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)
SF250-24P 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SF250-48 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SF250-48HP 440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)
SG250-08 160 x 30 x 128 mm (6.3 x 1.18 x 5.04 in)
SG250-08HP 160 x 30 x 128 mm (6.3 x 1.18 x 5.04 in)
SG250-10P 280 x 44 x 170 mm (11.0 x 1.45 x 6.69 in)
SG250-18 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)
SG250-26 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)
SG250-26HP 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250-26P 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250-50 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250-50HP 440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)
SG250-50P 440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)
SG250X-24 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250X-24P 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250X-48 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250X-48P 440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)
Unit weight Model name Unit weight
SF250-24 2.72 kg (6 lb)
SF250-24P 4.1 kg (9.04 lb)
SF250-48 3.57 kg (7.87 lb)
SF250-48HP 4.93 kg (10.87 lb)
SG250-08 0.54 kg (1.19 lb)
SG250-08P 0.56 kg (1.23 lb)
SG250-10P 1.2 kg (2.65 lb)
SG250-18 2.08 kg (4.59 lb)
SG250-26 2.72 kg (6.0 lb)
SG250-26HP 3.37 kg (7.43 lb)
SG250-26P 3.81 kg (8.40 lb)
SG250-50 2.94 kg (6.48 lb)
SG250-50HP 4.8 kg (10.58 lb)
SG250-50P 4.82 kg (10.63 lb)
SG250X-24 2.66 kg (5.86 lb)
SG250X-24P 3.86 kg (8.51 lb)
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 14 of 17
Feature Description
SG250X-48 3 kg (6.61 lb)
SG250X-48P 4.84 kg (10.67 lb)
Power 100 to 240V 50 to 60 Hz, internal, universal: SF250-24, SF250-24P, SF250-48, SF250-48HP, SG250-26, SG250-26HP, SG250-26P, SG250-50, SG250-50HP, SG250-50P, SG250X-24, SG250X-24P, SG250X-48, SG250X-48P
100 to 240V 50 to 60 Hz, external: SG250-08, SG250-08HP, SG250-10P
Certification UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
Operating temperature 32° to 122°F (0° to 50°C)
Storage temperature -4° to 158°F (-20° to 70°C)
Operating humidity 10% to 90%, relative, noncondensing
Storage humidity 10% to 90%, relative, noncondensing
Acoustic noise and Mean Time Between Failures (MTBF)
Model name Fan (number) Acoustic noise MTBF at 50°C (hours)
SF250-24 No fan – 630,719
SF250-24P 2 0° to 25°C: 39.7dB
50°C: 52.2dB
314,040
SF250-48 No fan – 256,281
SF250-48HP 2 0° to 30°C: 38.0dB
50°C: 52.7dB
286,555
SG250-08 No fan – 1,305,509
SG250-08HP No fan – 506,682
SG250-10P No fan – 205,647
SG250-18 No fan – 1,425,277
SG250-26 No fan – 343,592
SG250-26HP 1 0° to 30°C: 37.5dB
50°C: 49.7dB
333,792
SG250-26P 2 0° to 30°C: 36.0dB
50°C: 53.7dB
430,341
SG250-50 1 0° to 30°C: 35.1dB
50°C: 47.5dB
134,933
SG250-50HP 2 0° to 30°C: 34.2dB
50°C: 47.3dB
62,607
SG250-50P 4 0° to 30°C: 35.6dB
50°C: 50.2dB
53,839
SG250X-24 1 0° to 30°C: 32.6dB
50°C: 44.9dB
130,255
SG250X-24P 2 0° to 30°C: 35.1dB
50°C: 46.2dB
62,949
SG250X-48 2 0° to 30°C: 36.6dB
50°C: 49.3dB
68,585
SG250X-48P 4 0° to 30°C: 35.9dB
50°C: 50.6dB
53,722
Warranty Limited lifetime
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 15 of 17
Feature Description
Package contents
● Cisco 250 Series Smart Switch
● Power cord (power adapter for 8-port and 10-port SKUs)
● Mounting kit
● Quick Start Guide
Minimum requirements
● Web browser: Mozilla Firefox version 36 or later; Microsoft Internet Explorer version 9 or later, Chrome version 40 or later, Safari version 5 or later
● Category 5 Ethernet network cable
● TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installed
Ordering information
Table 2 provides ordering information.
Table 2. Ordering information
Model name Product order ID number Description
Fast Ethernet
SF250-24 SF250-24-K9-xx ● 24 10/100 ports
● 2 Gigabit copper/SFP combo + 2 SFP ports
SF250-24P SF250-24P-K9-xx ● 24 10/100 PoE+ ports with 185W power budget
● 2 Gigabit copper/SFP combo + 2 SFP ports
SF250-48 SF250-48-K9-xx ● 48 10/100 ports
● 2 Gigabit copper/SFP combo + 2 SFP ports
SF250-48HP SF250-48HP-K9-xx ● 48 10/100 PoE+ ports with 195W power budget
● 2 Gigabit copper/SFP combo + 2 SFP ports
Gigabit Ethernet
SG250-08 SG250-08-K9-xx ● 8 10/100/1000 ports (Port 8 with PoE+ power input support)
SG250-08HP SG250-08HP-K9-xx ● 8 10/100/1000 PoE+ ports with 45W power budget
SG250-10P SG250-10P-K9 ● 8 10/100/1000 PoE+ ports with 62W power budget
● 2 Gigabit copper/SFP combo ports with 60W PoE power input support
SG250-18 SG250-18-K9-xx ● 16 10/100/1000 ports
● 2 Gigabit copper/SFP combo ports
SG250-26 SG250-26-K9-xx ● 24 10/100/1000 ports
● 2 Gigabit copper/SFP combo ports
SG250-26HP SG250-26HP-K9-xx ● 24 10/100/1000 PoE+ ports with 100W power budget
● 2 Gigabit copper/SFP combo ports
SG250-26P SG250-26P-K9-xx ● 24 10/100/1000 PoE+ ports with 195W power budget
● 2 Gigabit copper/SFP combo ports
SG250-50 SG250-50-K9-xx ● 48 10/100/1000 ports
● 2 Gigabit copper/SFP combo ports
SG250-50HP SG250-50HP-K9-xx ● 48 10/100/1000 PoE+ ports with 192W power budget
● 2 Gigabit copper/SFP combo ports
SG250-50P SG250-50P-K9-xx ● 48 10/100/1000 PoE+ ports with 375W power budget
● 2 Gigabit copper/SFP combo ports
© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 16 of 17
Model name Product order ID number Description
10 Gigabit Ethernet
SG250X-24 SG250X-24-K9-xx ● 24 10/100/1000 ports
● 4 10 Gigabit Ethernet (2 x 10GBase-T + 2 x SFP+)
SG250X-24P SG250X-24P-K9-xx ● 24 10/100/1000 PoE+ ports with 195W power budget
● 4 10 Gigabit Ethernet (2 x 10GBASE-T + 2 x SFP+)
SG250X-48 SG250X-48-K9-xx ● 48 10/100/1000 ports
● 4 10 Gigabit Ethernet (2 x 10GBASE-T + 2 x SFP+)
SG250X-48P SG250X-48P-K9-xx ● 48 10/100/1000 PoE+ ports with 382W power budget
● 4 10 Gigabit Ethernet (2 x 10GBASE-T + 2 x SFP+)
Each combo port has one 10/100/1000 copper Ethernet port and one SFP Gigabit Ethernet slot, with one port active at a time.
The -xx in the product order ID number is a country/region specific suffix. For example, the complete PID of SG250-26 for the United States is SG250-26-K9-NA. Please refer to the following table for the suffix to use for your country/region.
Table 3. Country/region suffix for product order ID number
Suffix Country/region
-NA USA, Canada, Mexico, Colombia, Chile, and rest of LATAM
-BR Brazil
-AR Argentina
-EU EU, Russia, Ukraine, Israel, UAE, Turkey, Egypt, South Africa, Indonesia, Philippines, Vietnam, Thailand, India, Korea
-UK United Kingdom, Saudi Arabia, Qatar, Kuwait, Singapore, Hong Kong, Malaysia
-AU Australia, New Zealand
-CN China
-IN India
-JP Japan
-KR Korea
The products may also be available in countries or regions not listed above. Not all product models are offered in all countries/regions. For India, either the -EU or -IN suffix will be used, depending on product models. For Korea, either the -EU or -KR suffix will be used, depending on product models. Please consult with your local Cisco sales representative or Cisco partner for more details.
A powerful foundation for the basic business network
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and communications tools are resting on a strong technology foundation, so you can focus on achieving your
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For more information
To find out more about the Cisco 250 Series switches, visit https://www.cisco.com/c/en/us/products/switches/250-
series-smart-switches/index.html.
Printed in USA C78-737061-05 12/18